Finding the Fourth Proportional to 5,145.71, 7,096.82 and 3,154.86

Step by Step Solution

1. Step 1: Write the proportion equation
   5,145.71 : 7,096.82 = 3,154.86 : x
2. Step 2: Convert to fraction form
   5,145.71/7,096.82 = 3,154.86/x
3. Step 3: Cross multiply
   5,145.71x = 7,096.82 × 3,154.86
4. Step 4: Simplify right side
   5,145.71x = 22,389,457.77
5. Step 5: Solve for x
   x = 22,389,457.77/5,145.71
6. Step 6: Final answer
   x = 4,351.10